选择题
2025 AMC 8 Problem 14: Mean Twice the Median
A number N is inserted into the list 2, 6, 7, 7, 28. The mean is now twice as great as the median. What is N?
2025 AMC 8 第14题：平均值是中位数的两倍
将数字 N 插入到列表 2、6、7、7、28 中。现在平均值是中位数的两倍。什么是N
A.
7
B.
14
C.
20
D.
28
E.
34